There are many, many Linux distributions and a lot of unique reasons to like them, but my favorite is Ubuntu.

Ubuntu currently has the largest share of the Linux user base, thanks in large part to a user-friendly installation, a desktop designed to accomodate first-timers, and a rigorous new released schedule. Ubuntu also comes bundled with an extensive set of open-source software to cover the needs of first-time switchers, but also includes only truly free software in its default installation, winning fans on both sides of the open-source aisle.

I've been using "kubuntu" ( which is the same as Ubuntu but with a different GUI ) for over a year now, Im happy with its stability and usability, also I had no security problems at all, the distro is well updated regularly and you will not have any of the headaches that windows malware causes ! Of course im not saying that its exactly heaven, but one can tolerate some minor problems from time to time..I understand you need it for your daily use, what will you use it mainly for ? office apps or media playing or web browsing ? or all of them ?

Well, Ubuntu has a distinctive difference to RedHat, and that is that using the distro es 100% free (as opposed to RH), you only pay if you subscribe to Canonical's Support, like their Landscape Service for example.

I tried Ubuntu long time back when they used to send a free CD, I guess in 2008. I did not like it because it was more of a GUI and still the same. I thought of Linux as a command line tool lolz and thought better stick to Windows instead of Ubuntu though Redhat was the first Linux that I installed on my PC. I tried their latest LTS version and they improved the GUI a lot but can't say why I still don't like it, moreover I hate using the prefix sudo when m habitual of direct commands, atleast in a VM environment.

Still Ubuntu and Mint are famous because of ease of GUI, they are considered as good for newbies, can't say why they are not used by Linux Geeks as they pretend to be.

I meant to say commercial in terms of advertisement. Few months back they did something in their distro which was not appreciated by the Linux community. Can't say if they have removed the bloat or not.

@devnullius

I have 100GB (downloaded) of Linux ISOs as you know its free including the original ISO of PearOS and recently tried the mate version of mint as saw a customized installation of that. I keep on playing with different distros but did not like it that much along with latest open suse.

Above all I still prefer CentOS & Debian and both are recent replacements for RHEL & Fedora. Earlier, I was only using rpm based distros but Debian is a nice addition to the list.